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Install Help Collection files for a different language in SharePoint 2010

After installing a languagepack help contents should be available when you create a site collection in that language.
Sometimes however SharePoint gives you a message that the files have not been installed when you click the help button or go to the Help-settings page for your sitecollection.

You can force SharePoint to install the files using the hcinstal.exe tool in the bin folder under the SharePoint root (c:\program files\common files\microsoft shared\web server extensions\14\bin):

hcinstal.exe /act InstallAllHCs /loc 1043

This command will install all available help content for LCID 1043 (Dutch)

After this running this command (which can take up to 10-15 minutes easily) you need to run the SharePoint Products and Configuration Wizard on each front-end server.

I think you can also use the following 2 PowerShell commands, but I wasn’t able to test these after the first solution worked: